Oversight in R^4RS: `@' as an ``extended alphabetic character''

[Alan Bawden <Alan@lcs.mit.edu>]

   From: "Michael R. Blair" <ziggy@martigny.ai.mit.edu>
   Date: Tue, 6 Jan 1998 15:48:14 -0500
   | [] Add @ to the list of extended alphabetics....

Yes please.  That one's been bugging me for years.  It would also be nice
if the report said something about the status of `|'.  Perhaps it
belongs in the same category with `[', `]', `{' and `}'?

Other than `@' and `|', all the rest of the ASCII printing characters are
mentioned.  (I won't suggest expanding the coverage to all of ISO-8859-1...)